Waterproof structure for terminal

Abstract

A conductor crimping part is crimped onto a terminal metal fitting onto a conductor exposed at a terminal part of an electric wire. A crimped part of the conductor is intimately contacted with a rubber cap seal in such a way as not to be exposed to the outside. Thus, the conductor of the crimped part is sealed in such a manner as to prevent insulation performance from being degraded by infiltration of water contents and oil contents into a connecting part and permeation of the water contents and the oil contents among the wires, which respectively include the conductors.

What is claimed is:  
     
       1. A waterproof structure for a terminal comprising: 
       a terminal metal fitting including a conductor crimping part, a terminal connecting part and a partition wall part provided between the conductor crimping part and terminal connecting part, said conductor crimping part being crimped and connected to an exposed portion of a conductor at an end of an electric wire that includes said conductor and an insulating coating;  
       an elastic member for sealing at least a part of said insulating coating and a part of said partition wall part; an inner peripheral surface of said elastic member being in intimate contact with an outside of said insulating coating and an outside of said partition all part; and  
       a protecting member accommodating said elastic member in such manner that said elastic member is brought into a compressed state therein.  
     
     
       2. A waterproof structure for a terminal as set forth in  claim 1 , wherein said elastic member is a rubber barrel and covers an area extending from an outer peripheral surface of said electric wire to an outer peripheral surface of said partition wall part. 
     
     
       3. A waterproof structure for a terminal as set forth in  claim 1 , wherein said protecting member is shaped like a cap, in which said elastic member having been in a compressed condition is detachably accommodated. 
     
     
       4. A waterproof structure for a terminal as set forth in  claim 3 , wherein said protecting member is constituted by a pair of holders so as to be separated in two pieces thereof. 
     
     
       5. A waterproof structure for a terminal as set forth in  claim 4 , wherein a pair of locking arms are provided in a symmetric manner in said pair of holders and a pair of locking recess parts respectively engageable with said pair of locking hooks are provided in said pair of holders in a symmetric manner. 
     
     
       6. A waterproof structure for a terminal as set forth in  claim 1 , an indented part is formed on an inner peripheral surface of said elastic member.